參數(shù)資料
型號: MIC4720BML
廠商: Micrel Semiconductor,Inc.
英文描述: 400 W Transient Voltage Suppressor, SOD123W (SOD2 FlatPower), Reel Pack, SMD
中文描述: 采用3mm x 3mm 2.0MHz甲集成開關(guān)降壓穩(wěn)壓器
文件頁數(shù): 16/21頁
文件大小: 914K
代理商: MIC4720BML
Micrel, Inc.
MIC4720
May 2007
16
M9999-051707
0
5
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35
40
45
50
1
2
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5
P
OUTPUT VOLTAGE (V)
Max. Amount of Phase Boost
Obtainable using C
FF
vs. Output
Voltage
V
REF
= 1V
As you can see the typical phase margin, using the
same resistor values as before without a feedforward
capacitor results in 33.6 degrees of phase margin. Our
prior measurement with a feedforward capacitor yielded
a phase margin of 47 degrees. The feedforward
capacitor has given us a phase boost of 13.4 degrees
(47 degrees- 33.6 Degrees = 13.4 Degrees).
By looking at the graph, phase margin can be affected to
a greater degree with higher output voltages.
The next bode plot shows the phase margin of a 1.8V
output at 2A without a feedforward capacitor.
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